Mat



June 13, 1933- F. J. FREDRlcKsoN 1,913,529

MAT

Filed July 21 1932 y Patented June `13, 1933 UNITED STATES FRED :LFRnnn-mxson, orjnvnns'ron, ILLINOIS :MIATA Application led July 21,`19.f`2.` "SerialiNo?` 623,793.`

The invention relates to attachments for telephone transmitters and particularly to an improved friction mat for mounting upon thebase of such instruments;

5 y An object ofthe invention is to provide improved detachable means on the base of a telephone transmitter of the calling dialtype to prevent sliding of said transmitter while dialing. y

p Another object is to pro-vide an improved surface protecting device, for attachment to base, which may be readily detached thererom.

Another object isto provide an article of the character referred to with improved i meansfor positively gripping abase of a tel ephone transmitter. i,

Another object is to provide a mat for a telephone transmitter base,y that is `simply and inexpensively constructed, and that can be positively attached for preventing, in an elicient manner, movement of the transmit ter stand and holdit steady.

The foregoing and such other objects of the invention as will appear hereinafter as the description proceeds, will be more readily understood from a perusal of the follow-` ing specification, reference being had to the accompanying drawing, in which:

view of a calling dial telephone transmitting device, showingthe improved mat mounted over the base, said mat being shown partly in section. y

Fig. 2 is a fragmentary sectional perspectiveview of the improved mat. I

Fig. 3 is a view similar to Fig. 2, showing a lmodified form of construction.`

Fig. 4 is a plan view of a mat embodying modified attaching means. y

` Fig. 5 is a sectional view through a portion of a telephone transmitter base and the mat shown inFig. 4.

Telephone transmitting devices, particu-` larly the type equipped with automatic calla` ing dials, usually are not equipped with suitable means to prevent moving of the telephone across a flat surfacewhile a call is being dialed. Movement of the transmitting device during the dialing of a call often re- Fig. 1 is a fragmentary sideV elevational `sults in the dial not being rotated sufficiently to put through the required signal impulses i tofg'et the desired call connection, and causes a] wrong number call to bemade. Wrong y number calls are annoying and frequent occurrence of these wrong number calls can be lessened by preventing movement of the transmittingdevice while the calling dial thereon is being manually rotated. i

As shown inthe accompanying drawing, the telephone transmitting device 11, having a base `12` upon which` the usual calling dial 13 is mounted, is provided with4 a mat 14 which preferably is made of crepe orplanta-` tion rubber topresent a tacky surface for `causing the matto cling to thesurface ofa table, desk, or the like, and offer a very sub` stantial resistance to any sliding movement across such surface.

Theymat 14 preferably has an` annular up- 'l0 wardly extending marginal flange 15 `rounded on its upper edge and having an linwardly directed annular lip 16 adjacent said edge adapted to engage in a groove or recess 17 provided in telephone transmitting devices of the character shown, at" the joining of the` base portion 12 with the usual textile material covering 18, which extends over the bottomvof :said baserand upwardly a short y, distance aroundits sides. The mat is held securely r to the baseby thelipl andl the frictional clingingcdaction of the crepe rubber with the textile material 18" As shown in Fig.` 3, a metallic ring 19, split at 20, may be moulded or otherwise formed within the marginal flange 15, adjacent the lip` 16, to increase the gripping tendency of the lip`16 with the groove 17 on the telephone base.

Themat shown vin Figs. 4;- and 5is formed 90 substantially like that form illustrated in the previously described figures. However, this mat has embedded therein a plurality of circumferentially spaced 4T-shaped metallic members 21, each formed of an arcuate por-` tion 22 having an arm 23 extending outwardly therefrom and upwardly, as at 24, into the marginal'flange 15. The upper pointed end 25 of the portion 24 of the metallic members y is turned inwardly, as illustrated in Fig. 5,

to engage in the textile material 18 covering the base to prevent dislocation or removal of the pad 18. The resiliency of the material forming the mat 14, together with the weight of the transmitter upon the arcuate portions 22, retains the pointed ends 25 in the member 18 Although the drawing 'shows exemplary forms of the improved mat, it is to be understood that the matshown may embody certain modifications in detail structure to adapt it for attachment to various other types of bases than on telephone transmitting devices without departing from the spirit ofthe invention or the scope of the appended claims.

I claim:

1. An article of the character described comprising a mat of rubber for supporting a telephone transmitter base covered with textile material, an annular flange on said mat embracing said base, and a plurality of separate radially spaced metallic members embedded in the mat proper and extending into said iange engaging in said textile material to hold the mat in place.

2. An article of the character described comprising a circular mat adapted to beitted against a telephone transmitter base having an outer covering of textile material, said mat clinging to said textile material, an annular flange on said mat frictionally embracing the sides of said base, and metal parts. embedded in said mat and in said annular iange` having inwardly directed portions to embedin the edge of said base toaid securement of said matin place.

3. An article. of the character described comprising a circular rubber mat adapted to be fitted over a telephone transmitter base having an outer covering of textile 1naterial, and substantially T-shaped metal parts embedded in said mat having upwardly extending portionsadapted to embed in said textile material to secure said mat in place.

n testimony whereof I affix my signature inl the presence of two witnesses at 10 South LaSalle St., Chicago, Illinois. FRED J. FREDRICKSON. 

